Sunday night's Grammy Awards included a tribute to Whitney Houston. The singer died suddenly on Saturday. Sandra Endo is in Los Angeles with the latest on the investigation into Houston's death, and how her peers are honoring her monumental career.

Sunday night's Grammy Awards included a tribute to Whitney Houston. The singer died suddenly on Saturday. Sandra Endo is in Los Angeles with the latest on the investigation into Houston's death, and how her peers are honoring her monumental career.